Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
7739427 | Journal of Power Sources | 2013 | 4 Pages |
Abstract
Perfluorinated sulfonyl fluoride (PFSF) resin, the precursor of perfluorinated sulfonic acid (PFSA) ionomer is successfully dissolved in perfluorinated solvents, and its hydrophobic nature is utilized to resolve the difficulty of impregnating hydrophilic PFSA solution into hydrophobic porous expanded polytetrafluoroethylene (ePTFE). The composite membrane fabricated through such simple but effective method is well impregnated, leading to better ionic conductivity and lower gas permeability. The fuel cell constructed with PFSF solution based membranes shows superior performance as compared to that of its aqueous PFSA solution based counterpart, which is comparable to that of commercial Nafion® 211.
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Authors
Libin Yang, Hong Li, Fei Ai, Xiaoyong Chen, Junkun Tang, Yan Zhu, Chaonan Wang, Wang Zhang Yuan, Yongming Zhang,